Stable nonaqueous microparticle dispersions prepared from aminop

Details Stable nonaqueous microparticle dispersions prepared from aminop Stable nonaqueous microparticle dispersions prepared from aminop

1987-12-03

1992-01-28

Schofer, Joseph L.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524850, 524853, 524923, 525443, 525456, 525517, 525519, C08L 6122

Patent

active

050845063

ABSTRACT:
A stable, nonaqueous microparticle dispersion of the polymeric reaction product of reactants containing an aminoplast resin and a hydroxyl containing material is characterized in that less than 20 percent of the polymer microparticles have a mean diameter greater than 5 microns, further characterized in that at a total solids content of 60 percent the Brookfield viscosity is less that 1000 centipoise measured at 50 RPM using a number 3 spindle at 25.degree. C., the polymeric reaction product being prepared from reactants which are substantially free of acrylic polymer in a nonaqueous medium which is inert to the reactants.
Stable nonaqueous microparticle dispersions characterized as above can also be prepared by the self condensation of an aminoplast resin.

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